It does feel a little like the Heralds and Ulim just got yoinked from modern Earth when they talk like that, doesn't it? I think they just might not really care about the language anymore, having been around for so long, so they start to speak like that. Who gives a storm about proper language when you've been speaking it for... what, 7,000 years??
I mean the internet proves that people will take ANY shortcut to get information into words, as long as it remains intelligible.